Positioning device

Abstract

To provide a new and innovative positioning device which can move smoothly. [Solution] The device comprises a base (10), a clamping assembly (20), and an adjustment assembly (30), the base having a plurality of through holes (11) and a sliding groove, the clamping assembly being disposed within the sliding groove and comprising a first clamping block (21) and a second clamping block (22), the adjustment assembly comprising a first drive rod (31), a second drive rod (32), and at least one rotating rod (33), the first drive rod having a first screw portion and a first bevel gear, the second drive rod having a second screw portion and a second bevel gear, the first clamping block and the second clamping block being disposed on the first screw portion and the second screw portion, respectively, and each of the rotating rods comprising a third bevel gear (331), the third bevel gear meshing with the first bevel gear and the second bevel gear, respectively.

Description

[Technical field]

[0001] The present invention particularly relates to a positioning device. [Background technology]

[0002] A conventional positioning device, such as that disclosed in Taiwan Patent No. I720854, uses a guide post that is screwed into a passage of the guide post, and a conical first guide surface of the guide post moves axially and pushes a number of steel balls in the radial direction, driving first and second locking members to lock the first plug and the second plug.

[0003] However, in conventional positioning devices, when the guide pin presses the steel balls and the steel balls press the first and second locking members, each contact is made at a point. During the pushing process, the force is likely to be uneven and the first and second locking members are likely to vibrate, preventing smooth movement and making it difficult to securely lock the first plug and the second plug.

[0004] Therefore, there is a need to provide a new and innovative positioning device to solve the above problems. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE PRESENT EMBODIMENT The main object of the present invention is to provide a positioning device that can stably drive a first clamping block and a second clamping block to move relative to each other and apply a uniform force to the first clamping block and the second clamping block. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides a positioning device, comprising: a base, a clamping assembly, and an adjustment assembly, the base having a plurality of through holes and a sliding groove extending along a first direction, the clamping assembly being disposed in the sliding groove, the clamping assembly comprising a first clamping block and a second clamping block, the first clamping block and the second clamping block being respectively movable relative to each other between a locked position and an unlocked position along the first direction, and movable relative to at least one of the through holes, the adjustment assembly comprising a first driving rod, a second driving rod, and at least one rotating rod, the at least one through hole being movable relative to the first driving ... At least one rotating rod is rotatably mounted on the base, the first drive rod and the second drive rod are each rotatably mounted in the sliding groove, the first drive rod has a first threaded portion and a first bevel gear, the second drive rod has a second threaded portion and a second bevel gear, the first clamping block and the second clamping block are respectively mounted on the first threaded portion and the second threaded portion, and each of the rotating rods has a third bevel gear, and the third bevel gear is meshed with the first bevel gear and the second bevel gear, respectively, so as to enable the rotating rod to rotate the first drive rod and the second drive rod in conjunction with each other. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of one preferred embodiment. [Diagram 2] FIG. 1 is a perspective view of an articulated clamping work of one preferred embodiment. [Diagram 3] FIG. 1 is an exploded view of one preferred embodiment. [Figure 4] FIG. 1 is a cross-sectional view of one preferred embodiment. [Diagram 5] FIG. 5 is a partially enlarged view of FIG. [Figure 6] FIG. 2 is a cross-sectional exploded view of one preferred embodiment. [Figure 7] FIG. 2 is a cross-sectional exploded view of a first clamping block and a second clamping block of one preferred embodiment in a release position; [Figure 8] FIG. 2 is a cross-sectional exploded view of a first clamping block and a second clamping block of one preferred embodiment in a locked position; [Figure 9] FIG. 2 is a perspective view of a first drive rod of one preferred embodiment; [Figure 10] FIG. 2 is a perspective view of a rotating rod of one preferred embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The following examples are merely intended to illustrate possible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. It is to be noted in advance that the words "one" or "at least one" before the nouns mentioned in the specification do not limit the quantity, and may be "multiple" if necessary, and that changes in quantity are also included in the scope of protection.

[0009] 1 to 10 show one preferred embodiment of the present invention, in which the positioning device of the present invention comprises a base 10, a clamping assembly 20 and an adjustment assembly 30. As shown in FIG.

[0010] The base 10 has a plurality of through holes 11 and a sliding groove 12 extending along a first direction L1, and the clamping assembly 20 is provided in the sliding groove 12. The clamping assembly 20 has a first clamping block 21 and a second clamping block 22, and the first clamping block 21 and the second clamping block 22 can move relatively between a lock position and an unlock position along the first direction L1, and can move with respect to at least one of the through holes 11. The adjustment assembly 30 has a first driving rod 31, a second driving rod 32 and at least one rotating rod 33, and the at least one rotating rod 33 is rotatably provided on the base 10, and the first driving rod The first clamping block 21 and the second clamping block 22 are respectively provided (threaded) on the first screw portion 311 and the second screw portion 321, and each of the rotating rods 33 includes a third bevel gear 331, which is meshed with the first bevel gear 312 and the second bevel gear 322 so that the rotating rod 33 can rotate the first driving rod 31 and the second driving rod 32 in conjunction with each other. In this embodiment, the helical directions of the first screw portion 311 and the second screw portion 321 are opposite to each other. This provides a positioning jig or clamp work 70 that can be quickly and repeatedly attached and detached, and the first drive rod 31 and the first clamping block 21, and the second drive rod 32 and the second clamping block 22 are respectively screwed together to achieve a surface-to-surface contact connection, and the first clamping block 21 and the second clamping block 22 are moved relatively and stably by an even force for positioning.In addition, according to requirements such as output torque, magnitude of driving force, displacement speed of the first clamping block 21 and the second clamping block 22, or load level of the first driving rod 31 and the second driving rod 32, the gear ratio between the third bevel gear 331 and the first bevel gear 312 and the second bevel gear 322 can be changed, or at least one of the first bevel gear 312, the second bevel gear 322 and the third bevel gear 331 can be replaced with a different shape, thereby improving the versatility of use.

[0011] Each of the through holes 11 extends along an axial direction perpendicular to the first direction L1, and the multiple through holes 11 are at least partially provided at corners of the sliding groove 12, the first clamping block 21 has at least one first locking portion 211, and the second clamping block 22 has at least one second locking portion 221, and when the first clamping block 21 and the second clamping block 22 are respectively in the locked position, each of the first locking portion 211 and each of the second locking portion 221 protrudes into one of the through holes 11 and engages with a groove 41 of the bolt rod 40 located in the through hole 11, and when the first clamping block 21 and the second clamping block 22 are respectively in the released position, each of the first locking portion 211 and each of the second locking portion 221 disengages from the groove 41 of the bolt rod 40. In this embodiment, the first clamping block 21 has two first locking portions 211, one of which is provided at each of opposite corners of the first clamping block 21 facing away from the first bevel gear 312 and perpendicular to the first direction L1, and the second clamping block 22 has two second locking portions 221, one of which is provided at each of opposite corners of the second clamping block 22 facing away from the second bevel gear 322 and perpendicular to the first direction L1. Therefore, each of the first locking portions 211 and each of the second locking portions 221 applies an oblique acting force with respect to the first direction L1 to be locked in the groove 41 of the bolt rod 40, and further stabilizes positioning against a reaction force in the first direction L1. Furthermore, the first clamping block 21 and the second clamping block 22 are used to clamp and fix the plurality of bolt rods 40 respectively.

[0012] Each of the first locking portions 211 and each of the second locking portions 221 is provided with an arc-shaped concave surface 23 facing one of the through holes 11. Each of the first locking portions 211 and each of the second locking portions 221 is wedge-shaped and further includes a first inclined surface 24 and a second inclined surface 25 provided on both sides opposite to each other in the axial direction, and the arc-shaped concave surface 23 is provided between the first inclined surface 24 and the second inclined surface 25, and the first inclined surface 24 and the second inclined surface 25 gradually approach each other toward the arc-shaped concave surface 23. In this embodiment, the first inclined surface 24 and the second inclined surface 25 are arc-shaped. Specifically, the first inclined surface 24 and the second inclined surface 25 can abut against two axially opposing inclined wall surfaces 43 of the groove 41, and the arc-shaped concave surface 23 can correspond to (or abut) against a bottom peripheral surface 42 of the groove 41, thereby allowing for secure assembly with the bolt rods 40 of different dimensions, for example, the bolt rods having grooves at their bottom peripheral surfaces with different depths, heights or curvatures.

[0013] The first bevel gear 312 and the second bevel gear 322 are disposed opposite to each other with a gap in the first direction L1, and the third bevel gear 331 of the at least one rotating rod 33 meshes between the first bevel gear 312 and the second bevel gear 322. Preferably, the adjustment assembly 30 includes a plurality of the rotating rods 33, and the third bevel gear 331 of each rotating rod 33 is located between the first bevel gear 312 and the second bevel gear 322, and meshes with different positions (opposite positions in this embodiment) of the first bevel gear 312 and the second bevel gear 322, respectively. At least two of the rotating rods 33 are arranged coaxially, the first driving rod 31 and the second driving rod 32 are arranged coaxially, the first driving rod 31 and the second driving rod 32 are arranged side by side in the first direction L1, and at least two of the rotating rods 33 are arranged side by side in a direction perpendicular to the first direction L1. In this way, it can be operated and adjusted conveniently in multiple directions, and the first bevel gear 312 and the second bevel gear 322 can rotate synchronously and stably without being easily shaken relative to each other.

[0014] The base 10 further includes a first shaft hole 13 and a stopper 14, the first shaft hole 13 communicates with the sliding groove 12 and the outside, the adjustment assembly 30 further includes a shaft member 34, the shaft member 34 passes through the first shaft hole 13 and at least one of the first driving rod 31 and the second driving rod 32, at least one of the first driving rod 31 and the second driving rod 32 is rotatable with respect to the shaft member 34, and the stopper 14 covers the first shaft hole 13 and is located between the outside and the sliding groove 12. In this embodiment, the stopper 14 is a set screw locked to the first shaft hole 13 to detach the shaft member 34 for easy attachment and detachment. Preferably, the base 10 further includes a second axial hole 16, the second axial hole 16 and the first axial hole 13 being arranged coaxially and respectively arranged on opposite sides of the sliding groove 12, and the axial member 34 passes through the first driving rod 31, the second driving rod 32 and the second axial hole 16, so that the first driving rod 31 and the second driving rod 32 are arranged coaxially and rotate stably.

[0015] The positioning device further includes at least one limiting assembly 60, the base 10 further includes at least one accommodating hole 15 extending along a second direction L2, each of the accommodating holes 15 communicating with the sliding groove 12 from the outside, the second direction L2 being perpendicular to the first direction L1, the at least one rotating rod 33 being rotatably arranged in the at least one accommodating hole 15, each of the limiting assemblies 60 including a limiting member 61 and a gasket 62, the at least one limiting member 61 being removably arranged at an end of the at least one accommodating hole 15 away from the sliding groove 12, the at least one rotating rod 33 being able to abut against the at least one limiting member 61 in the second direction L2, and the gasket 62 abutting between the limiting member 61 and the rotating rod 33. In this embodiment, the restricting member 61 is a C-shaped buckle, the gasket 62 is a washer, and the end of each of the rotating rods 33 corresponding to the washer is provided with a connecting portion 332, which is used for connecting with a tool, and in this embodiment, the connecting portion 332 is a polygonal hole, and the tool can be directly connected to the polygonal hole through the C-shaped buckle and the washer. In addition, the base 10 has two receiving holes 15, and the two receiving holes 15 are spaced apart in the second direction L2, and each of the rotating rods 33 is provided in one of the receiving holes 15. This can prevent each of the rotating rods 33 from moving in the second direction L2 away from the third bevel gear 331, and prevent each of the rotating rods 33 from disengaging from the engagement with the first driving rod 31 and the second driving rod 32. The C-shaped buckle can be elastically contracted or expanded to facilitate disassembly and assembly.

[0016] In this embodiment, the first bevel gear 312 has an outer diameter larger than that of the first threaded portion 311. The first bevel gear 312 and the first threaded portion 311 are arranged along a first central axis A1. The first bevel gear 312 has a bottom 313 on the first central axis A1 and a plurality of first teeth 314. The plurality of first teeth 314 are arranged annularly on the bottom 313 around the first central axis A1 and protrude axially away from the bottom 313. The plurality of first teeth 314 and the bottom 313 define a recessed space 315. Each of the first teeth 314 has a first conical surface 316, a second conical surface 317, two inclined abutment surfaces 318 and an external tooth surface 319. The first conical surface 316 has a first conical surface 317, two inclined abutment surfaces 318 and an external tooth surface 319. the first conical surface 316 is perpendicular to the second conical surface 317; the external toothed surface 319 and the second conical surface 317 are disposed on opposite sides in the radial direction, the external toothed surface 319 is disposed on the side away from the concave space 315 in the radial direction, the external toothed surface 319 tapers in the axial direction away from the bottom 313; the two inclined abutment surfaces 318 are disposed on opposite sides in the circumferential direction, and are respectively disposed between the first conical surface 316, the second conical surface 317 and the external toothed surface 319; and the second driving rod 32 has the same structure as the first driving rod 31. Each of the rotating rods 33 defines a second central axis A2, and each of the rotating rods 33 includes a plurality of second teeth 35 arranged around the second central axis A2, and each of the second teeth 35 includes a beveled surface 351, two abutment surfaces 352, an extension surface 353, and a radially extending end surface 354, and the beveled surface 351 is arranged between the end surface 354 and the extension surface 353, and the extension surface 353 extends radially. is tapered toward the beveled surface 351 in the axial direction, the beveled surface 351 is rectangular, the beveled surface 351 is tapered from the extension surface 353 toward the end surface 354 and gradually approaches the second central axis A2, and the two abutment surfaces 352 are provided on both sides opposite to each other in the circumferential direction and are respectively connected between the extension surface 353, the beveled surface 351 and the end surface 354.A corresponding contact surface 352 can contact with a corresponding inclined contact surface 318 of a corresponding first tooth portion 314 in the circumferential direction, so that each of the rotating rods 33 can smoothly rotate at least one of the first driving rod 31 and the second driving rod 32. The first central axis A1 intersects with the second central axis A2. Furthermore, in other embodiments, each of the first tooth portions and each of the second tooth portions may be V-shaped or trapezoidal.

[0017] The relatively distant ends of the first drive rod 31 and the second drive rod 32 respectively abut against the peripheral wall of the sliding groove 12, thereby preventing the first drive rod 31 and the second drive rod 32 from moving away from each other when they are rotated by the at least one rotating rod 33.

[0018] The positioning device further includes a plurality of positioning rings 50, each of which is respectively disposed in the plurality of through holes 11. A through groove 51 is provided in the annular peripheral wall 52 of each of the positioning rings 50, the through groove 51 being connected to the through hole 11 and the sliding groove 12 provided therein. Each of the first locking portions 211 and each of the second locking portions 221 can pass through the through groove 51 of one of the positioning rings 50. Specifically, the hardness of each of the positioning rings 50 is higher than that of each of the through holes 11, and may be made of metal or plastic material, which can prevent the wear of the plurality of through holes 11. Each of the positioning rings 50 is removably disposed in one of the through holes 11 so as to be replaceable.

[0019] In use, the at least one rotating rod 33 is rotated to rotate the first driving rod 31 and the second driving rod 32 synchronously, and the first clamping block 21 and the second clamping block 22 are moved relative to each other to position the at least one bolt rod 40 or release the at least one bolt rod 40. [Explanation of symbols]

[0020] 10 Base 11 Through hole 12 Slide groove 13 First shaft hole 14 Stopper 15. Storage hole 16 Second shaft hole 20 Clamping Assembly 21 First clamping block 211 First locking part 22 Second clamping block 221 Second locking part 23 Circular concave surface 24 First Slope 25 Second Slope 30 Adjustment Assembly 31 First drive rod 311 First screw part 312 First bevel gear 313 Bottom 314 1st tooth part 315 Concave space 316 1st pyramidal surface 317 2nd cone surface 318 Inclined contact surface 319 External tooth surface 32 Second driving rod 321 Second screw part 322 Second bevel gear 33 Rotating Rod 331 3rd bevel gear 332 Connecting part 34 Shaft member 35 2nd tooth 351 Bevel tooth surface 352 Contact surface 353 Extended plane 354 End face 40 Bolt Rod 41 Groove 42 Bottom surface 43 Inclined Wall 50 Positioning ring 51 Through groove 52 Circular Wall 60 Restriction Assembly 61 Restriction member 62 Gasket 70 Clamp Work L1 1st direction L2 2nd direction A1 1st central axis A2 Second center axis

Claims

1. A positioning device comprising: a base; a clamping assembly; and an adjustment assembly; The base includes a plurality of through holes and a slide groove extending along a first direction, the clamping assembly is provided in the sliding groove and includes a first clamping block and a second clamping block, the first clamping block and the second clamping block are each capable of moving relatively between a locked position and an unlocked position along the first direction and are capable of moving relative to at least one of the through holes; A positioning device, wherein the adjustment assembly comprises a first drive rod, a second drive rod, and at least one rotating rod, the at least one rotating rod being rotatably mounted on the base, the first drive rod and the second drive rod being rotatably mounted in the slide grooves, the first drive rod comprising a first screw portion and a first bevel gear, the second drive rod comprising a second screw portion and a second bevel gear, the first clamping block and the second clamping block being mounted on the first screw portion and the second screw portion, respectively, and each of the rotating rods comprising a third bevel gear, the third bevel gear meshing with the first bevel gear and the second bevel gear, respectively, to enable the rotating rod to rotate the first drive rod and the second drive rod in unison.

2. 2. The positioning device of claim 1, wherein the first bevel gear and the second bevel gear are spaced apart from each other in the first direction, and the third bevel gear of the at least one rotating rod is meshed between the first bevel gear and the second bevel gear.

3. 3. The positioning device of claim 2, wherein the adjustment assembly comprises a plurality of the rotating rods, the third bevel gear of each of the rotating rods being located between the first bevel gear and the second bevel gear and meshing with different portions of the first bevel gear and the second bevel gear, respectively.

4. 2. The positioning device of claim 1, wherein each of the through holes extends along an axial direction perpendicular to the first direction, the plurality of through holes are at least partially provided at corners of the sliding groove, the first clamping block has at least one first locking portion, and the second clamping block has at least one second locking portion, and when the first clamping block and the second clamping block are each in the locked position, each of the first locking portion and each of the second locking portion protrudes into one of the through holes and engages with a groove of a bolt rod located in the through hole, and when the first clamping block and the second clamping block are each in the released position, each of the first locking portion and each of the second locking portion disengages from the groove of the bolt rod.

5. The positioning device according to claim 4 , wherein each of the first locking portions and each of the second locking portions is provided with an arc-shaped concave surface facing one of the through holes.

6. 6. The positioning device of claim 5, wherein each of the first engaging portions and each of the second engaging portions are wedge-shaped and further include a first inclined surface and a second inclined surface provided on opposite sides in the axial direction, the arc-shaped concave surface is provided between the first inclined surface and the second inclined surface, and the first inclined surface and the second inclined surface each gradually approach toward the arc-shaped concave surface.

7. 5. The positioning device of claim 4, further comprising a plurality of positioning rings, each of the plurality of positioning rings being provided within the plurality of through holes, a through groove being provided in the annular peripheral wall of each of the positioning rings, the through groove being connected to the through hole and the sliding groove provided, and each of the first engaging portions and each of the second engaging portions being able to pass through the through groove of one of the positioning rings.

8. 2. The positioning device of claim 1, wherein the base further comprises a first axial hole and a stopper, the first axial hole communicating with the sliding groove and the outside, the adjustment assembly further comprises an axial member, the axial member penetrating the first axial hole and at least one of the first drive rod and the second drive rod, at least one of the first drive rod and the second drive rod being rotatable relative to the axial member, and the stopper covering the first axial hole and positioned between the outside and the sliding groove.

9. 2. The positioning device of claim 1, further comprising at least one limiting assembly, wherein the base further comprises at least one accommodating hole extending along a second direction, each of the accommodating holes communicating with the sliding groove and the outside, the second direction being perpendicular to the first direction, the at least one rotating rod being rotatably arranged in the at least one accommodating hole, each of the limiting assemblies comprising a limiting member and a gasket, the at least one limiting member being removably arranged at an end of the at least one accommodating hole away from the sliding groove, the at least one rotating rod being able to abut against the at least one limiting member in the second direction, and the gasket abutting between the limiting member and the rotating rod.

10. The first clamping block includes two of the first engaging portions, and the first clamping block is provided with one of the first engaging portions at each of opposite corners on both sides facing away from the first bevel gear and perpendicular to the first direction, The second clamping block includes two of the second engaging portions, and the second clamping block is provided with one of the second engaging portions at each of opposite corners of the second clamping block that are disposed toward a side away from the second bevel gear and perpendicular to the first direction, The first threaded portion and the second threaded portion have opposite helical directions, The first bevel gear and the second bevel gear are provided opposite to each other with a gap in the first direction, and the third bevel gear of the at least one rotating rod is meshed between the first bevel gear and the second bevel gear, The adjustment assembly includes a plurality of the rotating rods, and the third bevel gear of each of the rotating rods is located between the first bevel gear and the second bevel gear and meshes with the first bevel gear and the second bevel gear at opposing positions, respectively; At least two of the rotating rods are arranged coaxially, the first drive rod and the second drive rod are arranged coaxially, the first drive rod and the second drive rod are arranged side by side in the first direction, and the at least two of the rotating rods are arranged side by side in a direction perpendicular to the first direction, The positioning device further includes a plurality of positioning rings, each of the positioning rings is provided in the plurality of through holes, and a through groove is provided in the annular peripheral wall of each of the positioning rings, the through groove communicates with the through hole and the sliding groove, and each of the first locking portions and each of the second locking portions can pass through the through groove of one of the positioning rings, the base further comprises a first shaft hole and a stopper, the first shaft hole communicating with the sliding groove and the outside, the adjustment assembly further comprises an axial member, the axial member passing through the first axial hole and at least one of the first driving rod and the second driving rod, the at least one of the first driving rod and the second driving rod being rotatable relative to the axial member, the stopper covering the first axial hole and being located between the outside and the sliding groove, The base further includes a second shaft hole, the second shaft hole and the first shaft hole are coaxially provided on opposite sides of the sliding groove, and the shaft member passes through the first driving rod, the second driving rod, and the second shaft hole; The positioning device further comprises at least one limiting assembly, the base further comprises at least one receiving hole extending along a second direction, each of the receiving holes communicates with the sliding groove and the outside, the second direction is perpendicular to the first direction, the at least one rotating rod is rotatably arranged in the at least one receiving hole, each of the limiting assemblies comprises a limiting member and a gasket, the at least one limiting member is detachably arranged at an end of the at least one receiving hole away from the sliding groove, the at least one rotating rod can abut against the at least one limiting member in the second direction, and the gasket abuts between the limiting member and the rotating rod, The restricting member is a C-shaped buckle, the gasket is a washer, and a connecting portion is provided at an end of each of the rotating rods corresponding to the washer, and the connecting portion is used for connecting with a tool; The positioning device according to claim 5 , wherein the base includes two of the receiving holes, the two receiving holes being spaced apart in the second direction, and each of the rotating rods is provided in one of the receiving holes.

Images